How do I fix a sprinkler valve that leaks instead of popping up

When this particular valve (Champion Classic 3/4" As Max PSI 150 466 Max Temp 110o) turns on, a lot of water starts coming out of the the bottom part of the valve which I've highlighted in the imag

Why is my sprinkler system backflow leaking after being winterized

How to Winterize Sprinkler and Irrigation Systems

air compressor - Help with steps for sprinkler blowout for winter - Home Improvement Stack Exchange

Have you pulled out the pop-up insert in a Rainbird underground sprinkler and replaced just the sprinkler head? - Quora

Need advice to fix a leaking sprinkler valve - Community Forums

Have you pulled out the pop-up insert in a Rainbird underground sprinkler and replaced just the sprinkler head? - Quora

Why Does My Sprinkler System Leak? Causes & Tips for Northern TX

air compressor - Help with steps for sprinkler blowout for winter - Home Improvement Stack Exchange

How can we fix a leaking Rainbird sprinkler head? - Quora

winterizing - How can I attach an air compressor to the pictured sprinkler system - Home Improvement Stack Exchange

Sprinkler head won't stop leaking : r/Irrigation

Retic Management - How Master Valves Work

Managing Pressure in the Home Irrigation System